/* ------------------ 全局样式 ------------------ */
html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100vh;
  height: auto;
  overflow-x: hidden;
  touch-action: pan-x pan-y;
  user-select: none;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: linear-gradient(135deg, rgb(214,238,250), rgb(180,222,250), rgb(240,248,255));
}

/* 控制全站 <b> 粗细 */
b {
  font-weight: 600; /* 想要更轻就改成 400，想更粗改成 700 */
  font-family: inherit; /* 继承正文字体 */
}



/* ------------------ 页面背景 ------------------ */
body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* ------------------ 容器: 液态大玻璃 ------------------ */
.container {
  position: relative;
  z-index: 998; /* 保证在爱心下方 */
  width: 80vw;
  max-width: 500px;
  min-width: 280px;
  margin: 40px;
  padding: 25px;
  text-align: center;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
  color: #333;
  flex-shrink: 0;
  opacity: 0;
  transform: translateY(-30px);
  animation: fadeSlideDown 0.8s ease-out forwards;
}

/* ------------------ 横屏优化 ------------------ */
@media screen and (orientation: landscape) and (max-height: 500px) {
  .container {
    width: 90vw;
    min-width: 300px;
    margin: 20px 10px;
  }
  .tip-message {
    font-size: 13px;
    padding: 8px 10px;
  }
}

/* ------------------ 标题 ------------------ */
h2 { margin-bottom: 10px; color: #333; }
.subtitle { font-size: 14px; color: #666; margin-bottom: 20px; }

/* ------------------ 输入区域 ------------------ */
.input-container {
  display: flex;
  width: 100%;
  position: relative;
  margin-bottom: 15px;
}
.engine-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.25);
  border-right: none;
  border-radius: 10px 0 0 10px;
  cursor: pointer;
  z-index: 2;
}
.engine-wrapper img {
  width: 20px;
  height: 20px;
}
input[type="text"] {
  flex: 1;
  padding: 12px;
  font-size: 16px;
  border-radius: 0 10px 10px 0;
  border: 1px solid rgba(255,255,255,0.4);
  border-left: none;
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  outline: none;
  box-sizing: border-box;
  min-width: 0;
  color: #333;
}
input[type="text"]::placeholder {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ------------------ 搜索引擎下拉 ------------------ */
/* 下拉菜单容器 */
.engine-dropdown {
  position: absolute;
  top: calc(100% + 5px);
  left: 0;
  background: rgba(255,255,255,0.25);  /* 半透明液态玻璃 */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 0px solid rgba(255,255,255,0.3);
  border-radius: 10px;                  /* 容器圆角 */
  width: 120px;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 100;
  overflow: hidden;                     /* 保证悬停背景不溢出圆角 */
}

/* 显示状态 */
.engine-dropdown.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* 单个选项 */
.engine-dropdown div {
  padding: 8px 12px;
  cursor: pointer;
  font-size: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5); /* 分割线加深 */
}

/* 去掉最后一个选项的分割线 */
.engine-dropdown div:last-child {
  border-bottom: none;
}

/* 悬停效果 */
.engine-dropdown div:hover {
  background-color: rgba(0,0,0,0.1); /* 半透明高亮 */
}

/* 首尾选项圆角 */
.engine-dropdown div:first-child {
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
}
.engine-dropdown div:last-child {
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
}


/* ------------------ 按钮 ------------------ */
button {
  width: 100%;
  padding: 12px;
  margin-top: 15px;
  font-size: 18px;
  border-radius: 12px;
  border: none;
  color: #333; /* 改成深色，更符合玻璃风格 */
  cursor: pointer;
  background: rgba(255, 255, 255, 0.1); /* 半透明玻璃底色 */
  backdrop-filter: blur(5px); /* 模糊玻璃效果 */
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1); /* 轻微阴影增强浮感 */
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

button:hover {
  transform: scale(1.03); /* 悬停轻微放大，增加互动感 */
  box-shadow: 0 6px 18px rgba(0,0,0,0.15);
  background: rgba(255, 255, 255, 0.25);
}

button:active {
  transform: scale(0.97); /* 点击Q弹缩放 */
}


/* ------------------ 提示信息 ------------------ */
.tip-message {
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  margin-top: 15px;
  padding: 10px 15px;
  border-radius: 12px;
  font-size: 14px;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  pointer-events: none;

  /* 液态玻璃效果 */
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px) saturate(180%) brightness(1.1);
  -webkit-backdrop-filter: blur(10px) saturate(180%) brightness(1.1);

  /* 默认边框，确保所有类型覆盖时可见 */
  border: 1px solid rgba(255,255,255,0.25);
}

/* 显示状态 */
.tip-message.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* 类型控制文字和边框颜色 */
.tip-error { 
  color: #FF4949; 
  border: 1px solid rgba(255,73,73,0.5); 
}
.tip-success { 
  color: #27832A; 
  border: 1px solid rgba(39,131,42,0.5); 
}
.tip-info { 
  color: #1DB6DC; 
  border: 1px solid rgba(29,182,220,0.5); 
}

/* ------------------ 底部 ------------------ */
footer {
  position: relative;
  z-index: 998; /* 保证在爱心下方 */
  text-align: center;
  font-size: 14px;
  color: #666;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 5px 0; /* 缩小包裹区域，只包围文字 */
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInFooter 0.8s ease-out forwards;
  animation-delay: 0.8s;
}

/* 图标容器 */
.footer-right {
  display: flex;
  gap: 15px;
  margin-bottom: 5px;
}

/* 每个图标单独的包裹容器，保证动画互不影响 */
.icon-wrapper {
  display: inline-block;
}

/* 图标基础样式 */
.icon-img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(255,255,255,0.25);  /* 调整透明度 */
  backdrop-filter: blur(12px);         /* 合理值 */
  -webkit-backdrop-filter: blur(12px);
  padding: 5px;
  display: block;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* 悬停效果 */
.icon-wrapper:first-child .icon-img:hover {
  transform: scale(1.1) rotate(-10deg);
}

.icon-wrapper:last-child .icon-img:hover {
  transform: scale(1.1) rotate(10deg);
}


/* 版权文字样式 */
.copyright {
  position: relative;
  z-index: 999;
  font-size: 16px;
  color: #333;
  text-shadow: 0 1px 3px rgba(0,0,0,0.2);
  margin-top: 5px;
  background: rgba(255,255,255,0.2); /* 半透明背景 */
  padding: 2px 8px;
  border-radius: 8px;
  backdrop-filter: blur(8px);        /* 改成合理的模糊值 */
  -webkit-backdrop-filter: blur(8px);
}

/* ------------------ 底部动画 ------------------ */
@keyframes fadeInFooter {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* ------------------ 动画 ------------------ */
@keyframes fadeSlideDown { 0% {opacity:0; transform:translateY(-30px);} 100%{opacity:1; transform:translateY(0);} }
@keyframes fadeInFooter { 0% {opacity:0; transform:translateY(20px);} 100% {opacity:1; transform:translateY(0);} }
@keyframes float-up {0%{transform:translateY(0) scale(1);opacity:1;}100%{transform:translateY(-30px) scale(1.5);opacity:0;}}

/* ------------------ 响应式 ------------------ */
@media (max-width:480px){
  .container {padding:25px 15px;}
  select,input[type="text"]{padding:14px 16px;font-size:15px;}
  select{background-position:right 14px center;background-size:20px;padding-right:44px;}
  button{padding:14px 20px;font-size:16px;}
  .icon-img{width:35px;height:35px;}
}

/* ------------------ 爱心动画 ------------------ */
.heart {position:absolute;font-size:16px;pointer-events:none;animation:float-up 1s ease-out forwards;}
input[type="text"],textarea{user-select:text;-webkit-user-select:text;-moz-user-select:text;-ms-user-select:text;}

/* ------------------ 语言切换按钮: 液态玻璃 ------------------ */
.lang-wrapper {
  position: fixed;
  top: 15px;
  right: 15px;
  z-index: 999;
  border-radius: 25px;
  padding: 0;                /* 去掉多余空间，避免大模糊圈 */
  background: none;          /* wrapper 不再产生背景 */
  backdrop-filter: none;     
  -webkit-backdrop-filter: none;
}

/* 按钮本身的液态玻璃效果 */
.lang-btn {
  padding: 8px 20px;
  border: none;
  border-radius: 25px;
  background: rgba(255, 255, 255, 0.25); /* 按钮玻璃背景 */
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(12px);
  color: #333;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: all 0.2s ease;
}

.lang-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

/* 下拉菜单 */
.lang-dropdown {
  opacity: 0;
  transform: translateY(-10px) scale(0.95);
  pointer-events: none;
  position: absolute;
  top: calc(100% + 5px);
  right: 0;
  margin-top: 6px;
  background: rgba(255, 255, 255, 0.25); 
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  overflow: hidden;
}

.lang-wrapper.active .lang-dropdown {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* 下拉选项 */
.lang-dropdown a {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  color: #333;
  text-decoration: none;
  white-space: nowrap;
}

.lang-dropdown a:hover {
  background: rgba(0, 0, 0, 0.05);
}
/* ------------------ 全局禁止选中（输入框除外） ------------------ */
body, body * {
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
}

input, textarea {
  user-select: text !important;
  -webkit-user-select: text !important;
  -moz-user-select: text !important;
  -ms-user-select: text !important;
}
/* ------------------ 下拉/弹窗通用动画 ------------------ */
.engine-dropdown,
.lang-dropdown,
.tip-message {
  opacity: 0;
  transform: translateY(-8px) scale(0.95);
  pointer-events: none;
}

/* 打开时 */
.show,
.lang-wrapper.active .lang-dropdown {
  animation: popIn 0.35s cubic-bezier(0.25, 1, 0.5, 1) forwards;
  pointer-events: auto;
}

/* 关闭时 */
.hide,
.lang-dropdown.hide {
  animation: popOut 0.35s cubic-bezier(0.25, 1, 0.5, 1) forwards;
  pointer-events: none;
}

/* 弹性进入 */
@keyframes popIn {
  0%   { opacity: 0; transform: translateY(-10px) scale(0.95); }
  60%  { opacity: 1; transform: translateY(4px) scale(1.02); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* 弹性退出 */
@keyframes popOut {
  0%   { opacity: 1; transform: translateY(0) scale(1); }
  40%  { transform: translateY(-4px) scale(0.98); }
  100% { opacity: 0; transform: translateY(-12px) scale(0.95); }
}

/* 按钮跟随效果（语言按钮可选） */
.lang-btn {
  transition: transform 0.35s cubic-bezier(0.25,1,0.5,1);
}
.lang-wrapper.active .lang-btn {
  transform: translateY(4px);
}